You might be surprised at this, but I actually like a couple of the games on the Caltron 6-in-1 (NES)...specifically, Magic Carpet (think Arabian-themed horizontal shmup) and Cosmos Cop (somewhat of a cross between 3D Worldrunner and Starfox).
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Wanted: Any and all Dragon Quest, Lufia/Estpolis, Tales of series, and NIS games, strategy guides, and miscellaneous items. Will pay $$$ or trade well for items I don't already have.
NWC always sounded fun to play....never tried it though.